Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Alfred P. Weber"'
Autor:
Mira Simmler, Simon Buchheiser, Ricardo Tischendorf, Jalal Poostforooshan, Alfred P. Weber, Hans-Joachim Schmid, Hermann Nirschl
Publikováno v:
Applications in Energy and Combustion Science, Vol 15, Iss , Pp 100183- (2023)
Customized metal oxide nanoparticles are on increasing demand due to their high specific surface area coupled with their material properties. Spray flame synthesis (SFS) is able to produce such particles in high quantity and purity. However, the turb
Externí odkaz:
https://doaj.org/article/dad97ba2eb234e82921a86834d5bf6fb
Autor:
Shahram Mohammadi, Jalal Poostforooshan, Malte F.B. Stodt, Vinzent Olszok, Johannes Kiefer, Udo Fritsching, Alfred P. Weber
Publikováno v:
Applications in Energy and Combustion Science, Vol 14, Iss , Pp 100151- (2023)
In this work, MnOx nanoparticles were produced by a continuous electrospray-assisted flame spray pyrolysis (EAFSP) method. In this regard, the precursor solutions containing manganese (II) nitrate hydrate (MnN) dissolved in 1-propanol precursor solut
Externí odkaz:
https://doaj.org/article/769e2b1881724dfe85e8b98f953ade79
Autor:
Martin Weers, Leonard Hansen, Daniel Schulz, Bernd Benker, Annett Wollmann, Carsten Kykal, Harald Kruggel-Emden, Alfred P. Weber
Publikováno v:
Minerals, Vol 12, Iss 4, p 480 (2022)
Deflector wheel classifiers are widespread in industry for the separation of powders into fine and coarse powders. Even though this separation process has been known for quite some time, it is not yet fully understood, and existing models fail to pre
Externí odkaz:
https://doaj.org/article/79b3e17572e14c20b331a48fb33e1aab
Publikováno v:
Minerals, Vol 12, Iss 2, p 132 (2022)
Triboelectric separation as an inexpensive and environmentally friendly technique could contribute to material-specific sorting. However, the application as a widespread method is limited due to the complexity of the process. In particle wall collisi
Externí odkaz:
https://doaj.org/article/fe62ed209de4491ca0d377040e80faa3
Publikováno v:
Nanomaterials, Vol 11, Iss 9, p 2266 (2021)
Nanoparticles produced in technical aerosol processes exhibit often dendritic structures, composed of primary particles. Surprisingly, a small but consistent discrepancy was observed between the results of common aggregation models and in situ measur
Externí odkaz:
https://doaj.org/article/d5b6755fd7b64a8382bf7d1e87d290cd
Publikováno v:
KONA Powder and Particle Journal, Vol 35, Iss 0, Pp 172-185 (2017)
Although the deflector wheel classifier is the dominant separation device in the industrial separation of fine-grained particle fractions, the classifying mechanisms at high particle loadings are still not described and understood sufficiently. The e
Externí odkaz:
https://doaj.org/article/311ae893087040adabd09ffeadad64de
Publikováno v:
Catalysts, Vol 10, Iss 12, p 1410 (2020)
A catalyst production method that enables the independent tailoring of the structural properties of the catalyst, such as pore size, metal particle size, metal loading or surface area, allows to increase the efficiency of a catalytic process. Such ta
Externí odkaz:
https://doaj.org/article/01c74df865ac4f69b4a67ae2bd15aeed
Autor:
Tao Wu, Alfred P. Weber
Publikováno v:
KONA Powder and Particle Journal, Vol 27, Iss 0, Pp 195-205 (2014)
At small Knudsen numbers (continuum regime) and sufficiently small Reynolds numbers, the friction resistance of particles with the carrier gas is described by means of the Stokes formula assuming no slip of the gas molecules at the particle surface.
Externí odkaz:
https://doaj.org/article/25edf756786a424192eb526d15710da8
Publikováno v:
Nanomaterials, Vol 8, Iss 7, p 530 (2018)
Nanoparticles are coated in-flight with a plasma-enhanced chemical vapor deposition (PECVD) process at ambient or elevated temperatures (up to 300 °C). Two silicon precursors, tetraethyl orthosilicate (TEOS) and hexamethyldisiloxane (HMDSO), are use
Externí odkaz:
https://doaj.org/article/3bbe311db1614340bb742a3b3e0e7e8c
Publikováno v:
Nanomaterials, Vol 6, Iss 5, p 91 (2016)
The plasma-based aerosol process developed for the direct coating of particles in gases with silicon oxide in a continuous chemical vapor deposition (CVD) process is presented. It is shown that non-thermal plasma filaments induced in a dielectric bar
Externí odkaz:
https://doaj.org/article/9ebf05b7f60d4a08b40cbbae822dec23